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EtherREGEN: We are in final beta; About to enter production!

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On 9/5/2019 at 1:53 PM, skatbelt said:

This is more or less the same setup I have. Would it be wise and advisable to power the Mac mini and the the EtherREGEN both from the JS-2 or is it better to the keep power supplies separated Alex?

 

If your Mac mini is not the DAC-attached machine--and so is connected to an 'A'-side port and not the 'B'-side port of EtherREGEN--then I see no downside to using your JS-2 to power both the Mac mini and the EtherREGEN. Isolation would be maintained.

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1 hour ago, Superdad said:

It is a VERY HAPPY Friday here.  The pre-production/beta-test boards received this past Monday are working end-to-end! Passing data, music and everything!

 

John found only one very small mistake--which he was able to fix under the microscope by soldering four very tiny capacitors across some cut traces and vias.  Nothing that would cause need for another round of test boards or any risk of going to production with the parts additions.

 

Still to do is the separate code set to load to the clock synthesizer whenever someone sets the Internal/External clock switch to use an external 10MHz reference.

Also the rather complex code to allow for easy field firmware updates via the microUSB port (vertical in the middle of the board).  But that can be done during the small, short field beta test cycle.

Thermal and current draw tests are the very next up. John has some family/church obligations this weekend, so not much will happen until the beginning of the week.  He will also need to make the aforementioned required capacitor additions to a few of the boards so he can send them down to me.  

I can't wait to put EtherREGEN in my system! x-D

 

Hope everyone has a great weekend,

--Alex C.

Congratulations

 

G


Main: sonicTransporter I5>ultraRendu/ghent/UltraCap 1.2> WireWorld Platinum>Wyred4Sound 2 DSD> Atma-sphere MP-1 3.1> Atma-sphere MA-1 3.1> Maggie 1.7, Quad (sub),Speaker cable: Zero Autoformers, Interconnects , Analysis Plus Silver Oval-In, Nordost Heimdall, Power Cables: Synergistic./Shunyata>Chang Litespeed 

HT:Dish>OPPO>Marantz>Hegel> 3-Maggies/2-Quads>REL Gibraltar>Custom Wire loom>APS>Samsung Plasma 55"

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Congratulations on a working board. A big milestone. Enjoy the weekend.

 

I do enjoy the updates!


[Home Digital] Bricasti M12 > McIntosh MC60 > Zu Druid V + Undertone (BHSE + Voce)

[Home Analog] Technics SL-1200G > K&K Audio Phono Amp (Zu DL-103/Benz Glider-SL/Denon DL-301 II)

[Office] Laptop > Kitsune R2R lvl3 > Violectric V281 > Focal Utopia Headphones (balanced)

[beach/Travel] Laptop > DragonFly Red > Ether Headphones

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31 minutes ago, Bernstein said:

Tuning-wise the last (hopefully last) thing I will add to my system...

same here....


Roon / Mola Mola Tambaqui / Kubala-Sosna XLR / Mola Mola Kaluga / KS biwire / B&W 803 D3

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2 hours ago, stevebythebay said:

Ah but then it’s time to tune the room itself.  Of late, while awaiting the EtherREGEN, that’s what I’ve been doing. It’s a fairly consequential aspect of getting the most out of our systems I’m afraid. 

I know, I know, ... but it’s a major learning curve for those of us with little experience of it ... been looking at HQP’s convolution, bought myself a umik1 mic, collecting guides, maybe all-too-hard ... but it’s still gonna sound better with the etherRegen in there!


elgar iso tran(2.5kVa, .0005pfd)>consonance pw-3 boards>macmini (16gb ram-ssd-js2 psu-mmk)[hd(naq psu)]>netgear gs105 switch[clones psu])>ghent js ethernet>ultraRendu(js-2)>uspbc>iso regen(lps-1/naq psu)>curious link>rme adi-2 dac>cawsey cables>naquadria sp2 passive pre> 1.naquadria lucien mkII.5 power>elac fs249be + elac 4pi plus.2> 2.perreaux9000b(mods)>2xnaq12” passive subs.

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3 hours ago, stevebythebay said:

Ah but then it’s time to tune the room itself.  Of late, while awaiting the EtherREGEN, that’s what I’ve been doing. It’s a fairly consequential aspect of getting the most out of our systems I’m afraid. 

Agree that that room treatments make a huge improvement.  Haven't tried the electronic route thus far.  With my current system, I really do listen to the music and not the system (finally, the analytical side of my brain is quiet!).   If I listened to a lot of large-scale classical, I'd be motivated to try convolution, since that kind of music seems to require more from the room.  I wonder if it is possible to get the true scale of large venues for large-scale classical, no matter the treatment.  


Roon / Mola Mola Tambaqui / Kubala-Sosna XLR / Mola Mola Kaluga / KS biwire / B&W 803 D3

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11 hours ago, Aidagent said:

This is my first post in this forum. First I want to tell you that English is not my native language. I hope you have patience.

 

I have followed this thread for a long time with interest. I admire enthusiasts who put their soul into creating the best conditions possible to reproduce the music as it was created. I am impressed by what you create and wait patiently for the product to come into my setup. I think it's good that you take the time you need to make you feel satisfied and ready to launch.

I have several products in my setup that are made by enthusiasts whose goal is greater than just making money. It is nothing wrong in makeing money. but if it is the highest goal, it often leads to short-term decisions that rarely yield the best results in the long run. I am not technically savvy. so it is difficult for me to judge how great the product will do in my system. But every litle bit of disturbance thats cleaned out of the signal adds up to a better musical experience.

 

Thank you for your work and the way you communicate with us followers. And thanks to everyone who writes in the thread for your interesting questions.

 

Johnny Cash Johnsson (without cash)

from Sweden.

 

Welcome to the forum. I like your signature, Johnny Cash (without cash)!

 

I’m in agreement with @Superdad - your English is probably better than half the English speakers who post here. 9_9 

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“... scratch my back” (Slim Harpo).


elgar iso tran(2.5kVa, .0005pfd)>consonance pw-3 boards>macmini (16gb ram-ssd-js2 psu-mmk)[hd(naq psu)]>netgear gs105 switch[clones psu])>ghent js ethernet>ultraRendu(js-2)>uspbc>iso regen(lps-1/naq psu)>curious link>rme adi-2 dac>cawsey cables>naquadria sp2 passive pre> 1.naquadria lucien mkII.5 power>elac fs249be + elac 4pi plus.2> 2.perreaux9000b(mods)>2xnaq12” passive subs.

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Been fun to follow this thread--I too have been eagerly awaiting the EtherREGEN. I'm wondering about the SMPS provided--would you suggest it be plugged straight into the wall, as you do with the SMPS you send along with the LPS 1.2? And still interested in whether or not an LPS makes a difference. Thanks.

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8 hours ago, Johnnydev said:
The development, technical(john)and business model(Alex), the openness (both) of the EtherRegen generates a lot of 
respect and appreciation for both of you.
The technical development is very unique in the world and the business model is in my opinion also world class.
I have quite a few experiences with cables, switches and 
LPS power supplies etc.but can't wait for your EtherRegen.

 

Thank you for all your kind words and enthusiasm.  And welcome to the Audiophile Style forum! B|

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G'day Alex @Superdad

 

Just a question about the stock SMPS

 

What will be the output voltage of the supplied SMPS? I thought the uptone branded one that comes with the lps1.2 had a 7.5v output, however I thought you said that the Etheregen would have an input voltage range of 9v-12v?

 

Unless I got my wires crossed somewhere (it's quite possible🤣)

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2 minutes ago, Bricki said:

What will be the output voltage of the supplied SMPS?

7.5V/4.8A (not that it needs anywhere near that current rating; at 7.5V, 1.3A should be fine).

 

2 minutes ago, Bricki said:

I thought you said that the Etheregen would have an input voltage range of 9v-12v?

7~12V is the range. At 12V, it will draw about 0.8A.

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21 hours ago, Superdad said:

 

The UpTone-branded 36W SMPS--which is provided as the "energizer"/charging supply for the LPS-1.2 and will also be the stock PS included with EtherREGEN--is slightly unique in that it is internally "ground-shunted."  That is, the outer barrel shell (-VE/"ground") of its DC output is--through circuits in the case--connected to AC mains ground.  The effect of that is to eliminate high-source-impedance AC leakage.  (Note that this does nothing to eliminate the low-source-impedance leakage common to all SMPS units--bad in most, much worse in some.)

Below is why this matters, and also why the recommendation with the EtherREGEN will be to insure that either:

a) EtherREGEN is powered by a power supply whose DC output -VE (outer-shell/"ground") is common to AC mains ground (such as the one we include). [Do not assume that 3rd party linear power supplies are like this--some are and some are not; Some multi-rail supplies have separate diode bridges and transformer secondaries and thus each output ground is "floated". This is easy to test with a continuity/multimeter--with all power disconnected.)

or:

b) If powered by a "floating" supply (one whose DC output -VE/"ground" is not common to mains ground), then the Ground Screw of the EtherREGEN should be used. [And yes, our UltraCap LPS-1.2 is a completely "floated" and isolated supply, so if using it with EtherREGEN the ground screw ought to be used.]

 

Back to why any of the above matters (and to what degree audibly varies--and in the case of EtherREGEN we do not know yet):

@JohnSwenson has measured high-source-impedance leakage on Ethernet cables coming from various other common network gear and computers. This can be pernicious stuff (common-mode AC leakage traveling over DC connections passes easily along both analog and digital connections in our audio systems), and it is desirable to shunt it away.  He measured a bunch of Ethernet switches and found that a few select ones--even a few cheap ones--will, when their DC power supply is shunted (as explained above), not pass AC leakage currents between their ports. 

[Some good posts of John's on leakage--can't find the one on it with the switches right now--here:

https://audiophilestyle.com/forums/topic/37034-smps-and-grounding/?do=findComment&comment=723187 and here:

https://audiophilestyle.com/forums/topic/37034-smps-and-grounding/?do=findComment&comment=735311 (tons of info in that thread)]

 

So in the design of the EtherREGEN we of course wanted to address this. In fact we have done so in several ways. The RJ45 magnetics that we chose for the four 'A'-side Gigabit ports have 12 tiny transformer cores per port. And their center-taps are wired to the ground and to the Ethernet switch chip through capacitors such that we maximize the blockage of leakage passing from port-to-port. And this works best if the unit is grounded (either through the power supply or via the ground screw).

 

But keep in mind that the above is just about blocking port-to-port leakage on the 'A' side. This has nothing to do with the full active digital isolation and reclocking moat--to the 'B'-side port--which makes the EtherREGEN unique in all the world. 

Yet frankly, with all the care we take on the 'A'-side--with all LT3045 voltage regulation, magnetics, and "femto" clocking--EtherREGEN will be a world-class switch even if the 'B' side port is never used!  But the real magic will happen when you cross the moat and use the 'B'-side port to feed your DAC-attached computer/renderer/endpoint.

 

----------

Sorry if I never quite answered your question.  

a) Don't know if plugging the stock SMPS direct to wall or into a "power conditioner" will matter--just be sure it gets a good mains ground;

b) We will all soon find out just how much or how little a good LPS benefits the EtherREGEN.

---------

 

And a quick update (busy day and I've got to get to shipping and other e-mails):

All the EtherREGEN pre-production boards are working great--end-to-end--including the SFP/optical.  John has prepped them all to be ready for user beta-test and he is shipping them down to me today (arriving Friday).  

Because the production cases won't arrive until the beginning of October, I took the milling drawings and a bunch of old LPS-1 front plates to my local machinist.  So the beta units will have end-plates that fit. Of course no silk-screened lettering--though on the 'A'-side the UpTone Audio logo from the LPS-1 faces will still be there, in the exact right spot.

 

Ciao!

--Alex C.

 

 

Much thanks--you did indeed, and then some! And counting down the days for the launch . . .

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